30 St Marys Road, Watford, WD18 0EF
About 30 St Marys Road
30 St Marys Road is a mid-terrace house in Watford (WD18 0EF). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (February 2016) shows a D (score 55), a step below the typical UK home. The recommended improvements would push it to C (score 78). The latest certificate is from February 2016, so improvements made since then won't be reflected.
Most recent transfer: September 2021 at £360,000. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 1997–2021, sale prices on this property compounded at 7.4% per year. On a £-per-square-foot basis, the last sale (£515/sq ft) was about 144.5% above the typical sold price in the postcode. One historical planning record sits against the property in 2019.
Know exactly what you're buying at 30 St Marys Road
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 03 Feb 2026
EPC Rating
Planning history
Council records include a two-storey rear extension at 30 St Marys Road.
- Jan 2019ExtensionFullIn report
Extension: Two storey · Rear of property
Erection of a two storey rear extension (amended plans and description)
- Documents
- 8 docs on file
- Reference
- 18/01500/FULH
We flagged 1 thing worth checking at 30 St Marys Road
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Signs of HMO activity in the area
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Sales history & valuation
30 St Marys Road has more than quadrupled in price since its earliest registered sale in 1997.
£390,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.4% per year over 24 years.
£360,000
Growth on file: 7.4% per year over 24 years.
Sales timeline
23 September 2021Most recent
£360,000
+8.1%over 5 years15 June 2016
£333,000
+208.5%over 15 years23 November 2000
£107,950
+70.0%over 3 years4 June 1997
£63,500
Median price across the last 5 sales in WD18 0EF: £355,000 (2025–2015).
Nearby sales in WD18 0EF
Everything we know about 30 St Marys Road, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area

Versus other St Marys Road homes
30 St Marys Road outperforms the street on price per m² by a wide margin.
Price per m²
£5,538
Street avg £3,089
Floor Area
65 m²
Street avg 71 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
3.9 t/year
Street avg 3.3 t/year
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1 Beaumont Place, Brightwell Road
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
8/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Wiggenhall Road — bus stop.
Closest school
0.1 km
Watford Grammar School for Girls. 35 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
55.7dB

Night-time· 23:00 – 07:00
46.8dB